chù jǐng shēng qíng

触景生情

old feelings arise at the sight of a familiar place

scene which recalls past memories; evocative of the past; reminiscent; to arouse deep feelings

Example:

他触景生情, 想起家乡, 不觉泪下。
Tā chùjǐngshēngqíng, xiǎngqǐ jiāxiāng, bù jué lèi xià.
He was moved by the occasion to thoughts of home, and despite himself he began to weep